do you need references for essays

How to Reference in an Essay (9 Strategies of Top Students)

Are you feeling overwhelmed by referencing?

When you’re first asked to do referencing in an essay it can be hard to get your head around it. If it’s been a while since you were first taught how to reference, it can be intimidating to ask again how to do it!

I have so many students who consistently lose marks just because they didn’t get referencing right! They’re either embarrassed to ask for extra help or too lazy to learn how to solve the issues.

So, here’s a post that will help you solve the issues on your own.

Already think you’re good at referencing? No worries. This post goes through some surprising and advanced strategies for anyone to improve no matter what level you are at!

In this post I’m going to show you exactly how to reference in an essay. I’ll explain why we do it and I’ll show you 9 actionable tips on getting referencing right that I’m sure you will not have heard anywhere else!

The post is split into three parts:

• What is a Reference and What is a Citation?
• Why Reference? (4 Things you Should Know)
• How to Reference (9 Strategies of Top Students)

If you think you’ve already got a good understanding of the basics, you can jump to our 9 Advanced Strategies section.

Part 1: What is a Reference and What is a Citation?

What is a citation.

An in-text mention of your source. A citation is a short mention of the source you got the information from, usually in the middle or end of a sentence in the body of your paragraph. It is usually abbreviated so as not to distract the reader too much from your own writing. Here’s two examples of citations. The first is in APA format. The second is in MLA format:

• APA: Archaeological records trace the original human being to equatorial Africa about 250,000–350,000 years ago (Schlebusch & Jakobsson, 2018) .
• MLA: Archaeological records trace the original human being to equatorial Africa about 250,000–350,000 years ago (Schlebusch and Jakobsson 1) .

In APA format, you’ve got the authors and year of publication listed. In MLA format, you’ve got the authors and page number listed. If you keep reading, I’ll give some more tips on formatting further down in this article.

And a Reference is:

What is a Reference?

A reference is the full details of a source that you list at the end of the article. For every citation (see above) there needs to be a corresponding reference at the end of the essay showing more details about that source. The idea is that the reader can see the source in-text (i.e. they can look at the citation) and if they want more information they can jump to the end of the page and find out exactly how to go about finding the source.

Here’s how you would go about referencing the Schlebusch and Jakobsson source in a list at the end of the essay. Again, I will show you how to do it in APA and MLA formats:

• APA: Schlebusch, C. & Jakobsson, M. (2018). Tales of Human Migration, Admixture, and Selection in Africa. Annual Review of Genomics and Human Genetics , 11 (33), 1–24.
• MLA: Schlebusch, Carina and Mattias Jakobsson. “Tales of Human Migration, Admixture, and Selection in Africa.” Annual Review of Genomics and Human Genetics , vol. 11, no. 33, 2018, pp. 1–24.

In strategy 1 below I’ll show you the easiest and fool proof way to write these references perfectly every time.

One last quick note: sometimes we say ‘reference’ when we mean ‘citation’. That’s pretty normal. Just roll with the punches. It’s usually pretty easy to pick up on what our teacher means regardless of whether they use the word ‘reference’ or ‘citation’.

Part 2: Why Reference in an Essay? (4 Things you Should Know)

Referencing in an essay is important. By the time you start doing 200-level courses, you probably won’t pass the course unless you reference appropriately. So, the biggest answer to ‘why reference?’ is simple: Because you Have To!

Okay let’s be serious though … here’s the four top ‘real’ reasons to reference:

1. Referencing shows you Got an Expert’s Opinion

You can’t just write an essay on what you think you know. This is a huge mistake of beginning students. Instead this is what you need to do:

Top Tip: Essays at university are supposed to show off that you’ve learned new information by reading the opinions of experts.

Every time you place a citation in your paragraph, you’re showing that the information you’re presenting in that paragraph was provided to you by an expert. In other words, it means you consulted an expert’s opinion to build your knowledge.

If you have citations throughout the essay with links to a variety of different expert opinions, you’ll show your marker that you did actually genuinely look at what the experts said with an open mind and considered their ideas.

This will help you to grow your grades.

2. Referencing shows you read your Assigned Readings

Your teacher will most likely give you scholarly journal articles or book chapters to read for homework between classes. You might have even talked about those assigned readings in your seminars and tutorials.

Great! The assigned readings are very important to you.

You should definitely cite the assigned readings relevant to your essay topic in your evaluative essay (unless your teacher tells you not to). Why? I’ll explain below.

• Firstly, the assigned readings were selected by your teacher because your teacher (you know, the person who’s going to mark your essay) believes they’re the best quality articles on the topic. Translation: your teacher gave you the best source you’re going to find. Make sure you use it!
• Secondly, by citing the assigned readings you are showing your teacher that you have been paying attention throughout the course. You are showing your teacher that you have done your homework, read those assigned readings and paid attention to them. When my students submit an essay that has references to websites, blogs, wikis and magazines I get very frustrated. Why would you cite low quality non-expert sources like websites when I gave you the expert’s article!? Really, it frustrates me so, so much.

So, cite the assigned readings to show your teacher you read the scholarly articles your teacher gave to you. It’ll help you grow your marks.

3. Referencing deepens your Knowledge

Okay, so you understand that you need to use referencing to show you got experts’ opinions on the topic.

But there’s more to it than that. There’s actually a real benefit for your learning.

If you force yourself to cite two expert sources per paragraph, you’re actually forcing yourself to get two separate pieces of expert knowledge. This will deepen your knowledge!

So, don’t treat referencing like a vanity exercise to help you gain more marks. Actually view it as an opportunity to develop deeper understandings of the topic!

When you read expert sources, aim to pick up on some new gems of knowledge that you can discuss in your essays. Some things you should look out for when finding sources to reference:

• Examples that link ideas to real life. Do the experts provide real-life examples that you can mention in your essay?
• Facts and figures. Usually experts have conducted research on a topic and provide you with facts and figures from their research. Use those facts and figures to deepen your essay!
• Short Quotes. Did your source say something in a really interesting, concise or surprising way? Great! You can quote that source in your essay .
• New Perspectives. Your source might give you another perspective, angle or piece of information that you can add to your paragraph so that it’s a deep, detailed and interesting paragraph.

So, the reason we ask you to reference is at the end of the day because it’s good for you: it helps you learn!

4. Referencing backs up your Claims

You might think you already know a ton of information about the topic and be ready to share your mountains of knowledge with your teacher. Great!

So, should you still reference?

Yes. Definitely.

You need to show that you’re not the only person with your opinion. You need to ‘stand on the shoulders of giants.’ Show what other sources have said about your points to prove that experts agree with you.

You should be saying: this is my opinion and it’s based on facts, expert opinions and deep, close scrutiny of all the arguments that exist out there .

If you make a claim that no one else has made, your teacher is going to be like “Have you even been reading the evidence on this topic?” The answer, if there are no citations is likely: No. You haven’t.

Even if you totally disagree with the experts, you still need to say what their opinions are! You’ll need to say: “This is the experts’ opinions. And this is why I disagree.”

So, yes, you need to reference to back up every claim. Try to reference twice in every paragraph to achieve this.

Part 3: Strategies for How to Reference in an Essay (9 Strategies of Top Students)

Let’s get going with our top strategies for how to reference in an essay! These are strategies that you probably haven’t heard elsewhere. They work for everyone – from beginner to advanced! Let’s get started:

1. Print out your Reference Style Cheat Sheet

Referencing is hard and very specific. You need to know where to place your italics, where the commas go and whether to use an initial for full name for an author.

There are so many details to get right.

And here’s the bad news: The automated referencing apps and websites nearly always get it wrong! They tell you they can generate the citation for you. The fact of the matter is: they can’t!

Here’s the best way to get referencing right: Download a referencing cheat sheet and have it by your side while writing your essay.

Your assignment outline should tell you what type of referencing you should use. Different styles include: APA Style, MLA Style, Chicago Style, Harvard Style, Vancouver Style … and many more!

You need to find out which style you need to use and download your cheat sheet. You can jump onto google to find a cheat sheet by typing in the google bar:

Download a pdf version of the referencing style cheat sheet, print it out, and place it on your pinboard or by your side when writing your essay.

2. Only cite Experts

There are good and bad sources to cite in an essay.

You should only cite sources written, critiqued and edited by experts. This shows that you have got the skill of finding information that is authoritative. You haven’t just used information that any old person popped up on their blog. You haven’t just gotten information from your local newspaper. Instead, you got information from the person who is an absolute expert on the topic.

Here’s an infographic listing sources that you should and shouldn’t cite. Feel free to share this infographic on social media, with your teachers and your friends:

3. Always use Google Scholar

Always. Use. Google. Scholar.

Ten years ago students only had their online university search database to find articles. Those university databases suck. They rarely find the best quality sources and there’s always a big mix of completely irrelevant sources mixed in there.

Google Scholar is better at finding the sources you want. That’s because it looks through the whole article abstract and analyses it to see if it’s relevant to your search keywords. By contrast, most university search databases rely only on the titles of articles.

Use the power of the best quality search engine in the world to find scholarly sources .

Note: Google and Google Scholar are different search engines.

To use Google Scholar, go to: https://scholar.google.com

Then, search on google scholar using keywords. I’m going to search keywords for an essay on the topic: “What are the traits of a good nurse?”

If you really like the idea of that first source, I recommend copying the title and trying your University online search database. Your university may give you free access.

4. Cite at least 50% sources you found on your Own Research

Okay, so I’ve told you that you should cite both assigned readings and readings you find from Google Scholar.

Here’s the ideal mix of assigned sources and sources that you found yourself: 50/50.

Your teacher will want to see that you can use both assigned readings and do your own additional research to write a top essay . This shows you’ve got great research skills but also pay attention to what is provided in class.

I recommend that you start with the assigned readings and try to get as much information out of them, then find your own additional sources beyond that using Google Scholar.

So, if your essay has 10 citations, a good mix is 5 assigned readings and 5 readings you found by yourself.

5. Cite Newer Sources

As a general rule, the newer the source the better .

The best rule of thumb that most teachers follow is that you should aim to mostly cite sources from the past 10 years . I usually accept sources from the past 15 years when marking essays.

However, sometimes you have a really great source that’s 20, 30 or 40 years old. You should only cite these sources if they’re what we call ‘seminal texts’. A seminal text is one that was written by an absolute giant in your field and revolutionized the subject.

Here’s some examples of seminal authors whose old articles you would be able to cite despite the fact that they’re old:

• Education: Vygotsky, Friere, Piaget
• Sociology: Weber, Marx, C. Wright Mills
• Psychology: Freud, Rogers, Jung

Even if I cite seminal authors, I always aim for at least 80% of my sources to have been written in the past 10 years.

6. Reference twice per Paragraph

How much should you reference?

Here’s a good strategy: Provide two citations in every paragraph in the body of the essay.

It’s not compulsory to reference in the introduction and conclusion . However, in all the other paragraphs, aim for two citations.

Let’s go over the key strategies for achieving this:

• These two citations should be to different sources, not the same sources twice;
• Two citations per paragraph shows your points are backed up by not one, but two expert sources;
• Place one citation in the first half of the paragraph and one in the second half. This will indicate to your marker that all the points in the whole paragraph are backed up by your citations.

This is a good rule of thumb for you when you’re not sure when and how often to reference. When you get more confident with your referencing, you can mix this up a little.

7. The sum total of your sources should be minimum 1 per 150 words

You can, of course, cite one source more than once throughout the essay. You might cite the same source in the second, fourth and fifth paragraphs. That’s okay.

But, you don’t want your whole essay to be based on a narrow range of sources. You want your marker to see that you have consulted multiple sources to get a wide range of information on the topic. Your marker wants to know that you’ve seen a range of different opinions when coming to your conclusions.

When you get to the end of your essay, check to see how many sources are listed in the end-text reference list. A good rule of thumb is 1 source listed in the reference list per 150 words. Here’s how that breaks down by essay size:

• 1500 word essay: 10 sources (or more) listed in the reference list
• 2000 word essay: 13 sources (or more) listed in the reference list
• 3000 word essay: 20 sources (or more) listed in the reference list
• 5000 word essay: 33 sources (or more) listed in the reference list

8. Instantly improve your Reference List with these Three Tips

Here’s two things you can do to instantly improve your reference list. It takes less than 20 seconds and gives your reference list a strong professional finish:

a) Ensure the font size and style are the same

You will usually find that your whole reference list ends up being in different font sizes and styles. This is because you tend to copy and paste the titles and names in the citations from other sources. If you submit the reference list with font sizes and styles that are not the same as the rest of the essay, the piece looks really unprofessional.

So, quickly highlight the whole reference list and change its font to the same font size and style as the rest of your essay. The screencast at the end of Step 8 walks you through this if you need a hand!

b) List your sources in alphabetical order.

Nearly every referencing style insists that references be listed in alphabetical order. It’s a simple thing to do before submitting and makes the piece look far more professional.

If you’re using Microsoft Word, simply highlight your whole reference list and click the A>Z button in the toolbar. If you can’t see it, you need to be under the ‘home’ tab (circled below):

You’ve probably never heard of a hanging indent. It’s a style where the second line of the reference list is indented further from the left-hand side of the page than the first line. It’s a strategy that’s usually used in reference lists provided in professional publications.

If you use the hanging indent, your reference list will look far more professional.

Here’s a quick video of me doing it for you:

9. Do one special edit especially for Referencing Style

The top students edit their essays three to five times spaced out over a week or more before submitting. One of those edits should be specifically for ensuring your reference list adheres to the referencing style that your teacher requires.

To do this, I recommend you get that cheat sheet printout that I mentioned in Step 1 and have it by your side while you read through the piece. Pay special attention to the use of commas, capital letters, brackets and page numbers for all citations. Also pay attention to the reference list: correct formatting of the reference list can be the difference between getting the top mark in the class and the fifth mark in the class. At the higher end of the marking range, things get competitive and formatting of the reference list counts.

A Quick Summary of the 9 Top Strategies…

Follow the rules of your referencing style guide (and that cheat sheet I recommended!) and use the top 9 tips above to improve your referencing and get top marks. Not only will your referencing look more professional, you’ll probably increase the quality of the content of your piece as well when you follow these tips!

Here’s a final summary of the 9 top tips:

Strategies for How to Reference in an Essay (9 Strategies of Top Students)

• Print out your Reference Style Cheat Sheet
• Only cite Experts
• Always use Google Scholar
• Cite at least 50% sources you found on your Own Research
• Cite Newer Sources
• Reference twice per Paragraph
• The sum total of your sources should be minimum 1 per 150 words
• Instantly improve your Reference List with these Three Tips
• Do one special edit especially for Referencing Style

Chris Drew (PhD)

Dr. Chris Drew is the founder of the Helpful Professor. He holds a PhD in education and has published over 20 articles in scholarly journals. He is the former editor of the Journal of Learning Development in Higher Education. [Image Descriptor: Photo of Chris]

• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd/ 5 Top Tips for Succeeding at University
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd/ 50 Durable Goods Examples
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd/ 100 Consumer Goods Examples
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd/ 30 Globalization Pros and Cons

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How to Write an Academic Essay with References and Citations

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Written by  Scribendi

If you're wondering how to write an academic essay with references, look no further. In this article, we'll discuss how to use in-text citations and references, including how to cite a website, how to cite a book, and how to cite a Tweet, according to various style guides.

You might need to cite sources when writing a paper that references other sources. For example, when writing an essay, you may use information from other works, such as books, articles, or websites. You must then inform readers where this information came from. Failure to do so, even accidentally, is plagiarism—passing off another person's work as your own.

You can avoid plagiarism and show readers where to find information by using citations and references. 

Citations tell readers where a piece of information came from. They take the form of footnotes, endnotes, or parenthetical elements, depending on your style guide. In-text citations are usually placed at the end of a sentence containing the relevant information. 

A reference list , bibliography, or works cited list at the end of a text provides additional details about these cited sources. This list includes enough publication information allowing readers to look up these sources themselves.

Referencing is important for more than simply avoiding plagiarism. Referring to a trustworthy source shows that the information is reliable. Referring to reliable information can also support your major points and back up your argument. 

Learning how to write an academic essay with references and how to use in-text citations will allow you to cite authors who have made similar arguments. This helps show that your argument is objective and not entirely based on personal biases.

How Do You Determine Which Style Guide to Use?

Often, a professor will assign a style guide. The purpose of a style guide is to provide writers with formatting instructions. If your professor has not assigned a style guide, they should still be able to recommend one. 

If you are entirely free to choose, pick one that aligns with your field (for example, APA is frequently used for scientific writing). 

Some of the most common style guides are as follows:

AP style for journalism

Chicago style for publishing

APA style for scholarly writing (commonly used in scientific fields)

MLA style for scholarly citations (commonly used in English literature fields)

Some journals have their own style guides, so if you plan to publish, check which guide your target journal uses. You can do this by locating your target journal's website and searching for author guidelines.

How Do You Pick Your Sources?

When learning how to write an academic essay with references, you must identify reliable sources that support your argument. 

As you read, think critically and evaluate sources for:

Objectivity

Keep detailed notes on the sources so that you can easily find them again, if needed.

Tip: Record these notes in the format of your style guide—your reference list will then be ready to go.

How to Use In-Text Citations in MLA

An in-text citation in MLA includes the author's last name and the relevant page number: 

(Author 123)

How to Cite a Website in MLA

Here's how to cite a website in MLA:

Author's last name, First name. "Title of page."

Website. Website Publisher, date. Web. Date

retrieved. <URL>

With information from a real website, this looks like:

Morris, Nancy. "How to Cite a Tweet in APA,

Chicago, and MLA." Scribendi. Scribendi

Inc., n.d. Web. 22 Dec. 2021.

<https://www.scribendi.com/academy/articles/how_to_cite_a_website.en.html>

How Do You Cite a Tweet in MLA ?

MLA uses the full text of a short Tweet (under 140 characters) as its title. Longer Tweets can be shortened using ellipses. 

MLA Tweet references should be formatted as follows:

@twitterhandle (Author Name). "Text of Tweet." Twitter, Date Month, Year, time of

publication, URL.

With information from an actual Tweet, this looks like:

@neiltyson (Neil deGrasse Tyson). "You can't use reason to convince anyone out of an

argument that they didn't use reason to get into." Twitter, 29 Sept. 2020, 10:15 p.m.,

https://twitter.com/neiltyson/status/1311127369785192449 .

How to Cite a Book in MLA

Here's how to cite a book in MLA:

Author's last name, First name. Book Title. Publisher, Year.

With publication information from a real book, this looks like:

Montgomery, L.M. Rainbow Valley. Frederick A. Stokes Company, 1919.

How to Cite a Chapter in a Book in MLA

Author's last name, First name. "Title of Chapter." Book Title , edited by Editor Name,

Publisher, Year, pp. page range.

With publication information from an actual book, this looks like:

Ezell, Margaret J.M. "The Social Author: Manuscript Culture, Writers, and Readers." The

Broadview Reader in Book History , edited by Michelle Levy and Tom Mole, Broadview

Press, 2015,pp. 375–394.

How to  Cite a Paraphrase in MLA

You can cite a paraphrase in MLA exactly the same way as you would cite a direct quotation. 

Make sure to include the author's name (either in the text or in the parenthetical citation) and the relevant page number.

How to Use In-Text Citations in APA

In APA, in-text citations include the author's last name and the year of publication; a page number is included only if a direct quotation is used: 

(Author, 2021, p. 123)

How to Cite a Website in APA

Here's how to cite a website in APA:

Author, A. A., & Author, B. B. (Year, Month. date of publication). Title of page. https://URL

Morris, N. (n.d.). How to cite a Tweet in APA, Chicago, and MLA. 

https://www.scribendi.com/academy/articles/how_to_cite_a_website.en.html       

Tip: Learn more about how to write an academic essay with  references to websites .

How Do You  Cite a Tweet in APA ?

APA refers to Tweets using their first 20 words. 

Tweet references should be formatted as follows:

Author, A. A. [@twitterhandle). (Year, Month. date of publication). First 20 words of the

Tweet. [Tweet] Twitter. URL

When we input information from a real Tweet, this looks like:

deGrasse Tyson, N. [@neiltyson]. (2020, Sept. 29). You can't use reason to convince anyone

out of an argument that they didn't use reason to get into. [Tweet] Twitter.

https://twitter.com/neiltyson/status/1311127369785192449

How to Cite a Book in APA

Here's how to cite a book in APA:   

Author, A. A. (Year). Book title. Publisher.

For a real book, this looks like:

Montgomery, L. M. (1919). Rainbow valley.

Frederick A. Stokes Company.

How to Cite a Chapter in a Book in APA

Author, A. A. (Year). Chapter title. In Editor Name (Ed.), Book Title (pp. page range).

With information from a real book, this looks like:

Ezell, M. J. M. (2014). The social author: Manuscript culture, writers, and readers. In

Michelle Levy and Tom Mole (Eds.), The Broadview Reader in Book History (pp. 375–

394). Broadview Press.

Knowing how to cite a book and how to cite a chapter in a book correctly will take you a long way in creating an effective reference list.

How to Cite a Paraphrase in APA

You can cite a paraphrase in APA the same way as you would cite a direct quotation, including the author's name and year of publication. 

In APA, you may also choose to pinpoint the page from which the information is taken.

Referencing is an essential part of academic integrity. Learning how to write an academic essay with references and how to use in-text citations shows readers that you did your research and helps them locate your sources.

Learning how to cite a website, how to cite a book, and how to cite a paraphrase can also help you avoid plagiarism —an academic offense with serious consequences for your education or professional reputation.

Scribendi can help format your citations or review your whole paper with our Academic Editing services .

Take Your Essay from Good to Great

Hire an expert academic editor , or get a free sample, about the author.

Scribendi's in-house editors work with writers from all over the globe to perfect their writing. They know that no piece of writing is complete without a professional edit, and they love to see a good piece of writing transformed into a great one. Scribendi's in-house editors are unrivaled in both experience and education, having collectively edited millions of words and obtained numerous degrees. They love consuming caffeinated beverages, reading books of various genres, and relaxing in quiet, dimly lit spaces.

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"The Complete Beginner's Guide to Academic Writing"

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How to Write a Reference List (or Bibliography) For an Essay

An essay without a reference list is like a house without foundations – weak and unsupported!

After all, the reference list is ‘proof’ that the books and journals you referred to in your essay do exist. In turn, this makes your essay seem more credible.

But a reference list will only enhance your essay if it is accurate . That said, let’s explore how to write a clear and accurate reference list for an essay.

How to label your list of references

Firstly, make sure you know what to call the list of references at the end of your essay. The most common name for this list is a ‘reference list’. But some referencing styles call it a ‘bibliography’ or even a ‘works cited’ list. Also, it’s possible to have a ‘reference list’ and a ‘bibliography’ in the same essay.

What’s the difference between a reference list and a bibliography?

Generally speaking, a ‘reference list’ includes a list of all the sources that were cited in the essay – nothing more and nothing less. A bibliography, on the other hand, includes works that were consulted but not specifically cited in the essay. This is the traditional meaning of the term bibliography, at least.

But, in OSCOLA style, the ‘bibliography’ functions more like a ‘reference list’.

Confused? Don’t worry! This table will show you how to label the list of references according to your chosen referencing style.

Referencing styleHow to label the refs at the end of the essayDescriptionAPA

General rules to follow

Once you know how to label your list of references, you can start putting the list together. Here are some general rules that apply to all referencing styles:

• Start your list of references on a new page – it looks a lot neater!
• Get the placement right – references usually come at the end of the essay but before the appendix (if applicable).
• Alphabetical order – the references should be arranged in alphabetical order (by surname).
• Remove hyperlinks – that way, your reference list will look neat and tidy when it’s viewed on-screen.
• Don’t change Americanisms – References should be written in their original form. So, if you’re citing the ‘Journal of Behavior Studies’ , don’t be tempted to change this to the ‘Journal of Behaviour Studies’ .
• Word count – Remember that the reference list does not contribute to the total word count, so remember to deduct these words when you calculate the final word count.

When looking for sources, you might have noticed that some publications offer ‘suggested citations’. It can be helpful to copy and paste these suggested citations, but you will probably need to make some changes to ensure the citation is compliant with your referencing style. That said, let’s take a look at each referencing style in a bit more depth.

How to write a reference list in APA style

Key points to remember:

• As a minimum, the reference should contain the author’s name , the date of the publication, the title , and the source (I.e. where it came from).
• Additional information is also required for journals, such as the page number(s), the volume number and the issue number (see example).
• The doi should be provided at the end of the reference (if applicable).
• All lines except the first line should be indented – this is called a hanging indent. (Word: Paragraph>Special>Hanging).
• Remember to put a full stop at the end of each reference.

For further guidance, check out APA Seventh Edition ! This resource is great as it provides plenty of examples.

How to write a bibliography in OSCOLA

At the end of your essay, you should report a ‘Table of Cases’ a ‘Table of Legislation’, and finally, a ‘Bibliography’. In OSCOLA, the bibliography should include all secondary sources that were cited in the essay.

The secondary sources are listed in a very similar way to the footnotes except that the author’s name is inverted (surname, first initial).

If there are any unattributed works, these should begin with ——.

You’ll notice that OSCOLA is a pretty minimalist referencing style. This means it’s quite easy to get the hang of. You can find full and detailed guidance in this OSCOLA referencing handbook .

How to write a reference list in Harvard style

There is no official manual for Harvard style like there is for APA and Chicago. Rather, universities adopt their own versions of Harvard style. So, if your faculty uses Harvard style, get a hold of your university’s referencing guide to check the requirements.

• Generally speaking, though, a Harvard-style reference list is similar to an APA-style reference list, in that you must provide the author’s name, date of publication, title, and source. Similarly, book titles and journal titles should be italicised.
• Unlike APA, there is no need to add a hanging indent.
• Finally, when citing books, you should provide both the publisher’s name and location (Publisher Location: Publisher Name).

This Harvard referencing guide from The University of East Anglia is comprehensive yet easy to understand – definitely one of the best guides out there!

ASA reference list guidance

• ASA is fairly similar to APA but notice the differences in punctuation (see examples).
• The reference list must be double-spaced.
• You should include the author’s first name and surname (unless the first name was not included in the original publication).
• Also, the first author’s name should be inverted (surname, first name) but any subsequent names should not be inverted (first name, surname).

Note how a colon is used to introduce the page numbers. This is one of the key differences between APA and ASA style. For more information, check out the ASA quick style guide .

MLA ‘works cited’ guidance

As mentioned, the works cited list is equivalent to a reference list, so it must list all the publications that were cited in the essay.

• The references should be formatted with a hanging indent (like APA).
• Uniquely, the date comes towards the end of the reference.
• First and last names are required (inverted)
• The publisher’s name is required but the location is not.

Want to know more? This MLA resource is highly recommended!

How to write a reference list in Chicago style (in-text references)

• Like APA and MLA, the references should be indented (hanging)
• The author’s first name and surname should be provided
• For books, the publisher’s location and name are required.
• Notice that commas are rarely used (except to separate the volume and issue number of a journal).
• A doi should be provided after an electronic resource. If there is no doi, a URL is acceptable.

The Chicago Manual of Style is updated regularly so always use the latest guidance. Finally, if you are using the Chicago footnote style of referencing, check out the bibliography guidance here .

Is the reference list really that important?

In a word, yes!

Imagine, for a moment, that you’ve just finished reading an essay…

Overall, it made some interesting points, but there were no references to back up the claims that were made. Would you think this was a good essay? Would you trust what the author had written? Or would you think it was lacking?

Once you see things from the reader’s perspective, the importance of the reference list suddenly becomes clear.

In essence, this special list boosts the credibility of your essay. So, don’t make it an after-thought.

Need help with your referencing list or bibliography? Our essay writing service can help!

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How to Reference Essays

Last Updated: January 8, 2024 Fact Checked

This article was co-authored by Alexander Peterman, MA . Alexander Peterman is a Private Tutor in Florida. He received his MA in Education from the University of Florida in 2017. There are 14 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 365,966 times.

When you begin writing a research essay, you must take into account the format of your writing and reference pages. There are several reference styles that may be assigned to you, including MLA (Modern Language Association), APA (American Psychological Association), and Chicago. Each one has its own set of rules. There's no need to familiarize yourself with all 3 unless you have to, but you do need to learn at least one if you’re in any field involving academic writing. Here are summaries of each style to help you start your essay on the right track.

Referencing Essays Templates

• You will need a citation directly after every sentence (or group of sentences if you're citing the same source in multiple consecutive sentences) containing information you didn't think of yourself. These include: paraphrases, facts, statistics, quotes, and examples.
• An in-text citation using MLA will simply have the author last name (or title if no author) followed by the page number. No comma between author and page number. For example: (Richards 456) Richards is the author last name, and 456 is the page number.
• If you have an author name (or title, if no author) but no page number, simply use author last name (or title).

• The easiest way to keep track of MLA citations while doing research is to copy and paste copyright information into a word processing document as you go, or to write it down in a notebook.
• Things to include for any source are author(s), date published, publisher, page number, volume and issue number, website, date accessed, anything that appears on the copyright page or indicates how to find it again. [2] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source

• As an example, the format for a standard book citation using MLA style is as follows: Last name of author, First name. Title of Book. City published: Publisher Name, Year published. Source Medium.
• An MLA website citation looks like the following. If there's no author listed, begin citation with the name of the page: Last name, first name. "Page Title." Website Title. Publisher. Date published. Source Medium. Date accessed.
• An MLA scholarly article citation looks like the following: Last name, First name. "Title of Article." Title of Journal . Volume.Issue (Year): page numbers. Source Medium.
• Write the title of the main work (book, magazine, journal, website, etc.) in italics, or underline if you’re writing references by hand.
• Chapter or article titles should be in quotation marks.

• If there is no author listed, as is common on websites, simply skip the author’s name and begin the entry with the title of the work.
• Alphabetize by the first letter that appears in the entry, whether it has an author name or not.

• The formatting should be in Times New Roman font, size 12, with “Works Cited” centered at the top of a new page.
• Each entry should have hanging indent, meaning all lines below the first line are indented by half an inch.
• Make sure there is a period after each section of the citations. A period should always end the citation.

• Place a parenthetical citation at the end of every sentence (or group of sentences if you're using the same source for multiple consecutive sentences) containing information you didn't know before doing research.
• An in-text citation using APA will simply have the author last name (or title if no author) followed by the year it was published. No comma between name and year. For example: (Richards 2005) Richards is the author last name, and 2005 is the year.
• If you have an author name (or title if no author) but no page number, simply use author last name (or title). This is common when citing websites.
• APA document formatting is very important. APA papers are divided up into 4 sections: the title page, the abstract, the main body, and the references page. The citations of a research paper using APA appear in the References section, the last portion of an APA document. [7] X Research source

• To form APA reference page citations, you will need such information as author name(s), date published, website URL, date you accessed the website, title of work, and so on. [8] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source

• For example, the format for an APA reference of a scholarly journal article is as follows: Author last name, First initial. (Year published). Article or chapter title. Journal or book title, Issue number , page number range. [10] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source
• The format for an APA book reference looks like: Last name, First name. (Year.) Title of Book: Capital letter also for subtitle . Location: Publisher.
• The format for an APA website reference looks like: Author, A.A. First name, & Author, B.B. (Date published.) Title of article. In Title of webpage or larger document or book (chapter or section number). Retrieved from URL address

• Capitalize the author's last name and first initial, followed by a period.
• Only capitalize the first word of a journal article title, unless the title contains a proper noun (called sentence case). Titles of books should preserve the published capitalization.
• Capitalize the city of publication, and use correct state abbreviations for states. Also capitalize the name of the publisher and end the reference with a period.
• The title of larger works, whether a book, journal, website, or magazine, is in italics (or underlined if handwriting), as is the issue number that appears right after the title. Titles for shorter works like articles and chapters should not have any indicative punctuation in an APA entry. [12] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source
• A period should end all citations.

Using Chicago Manual of Style

• For Notes and Bibliography, you will use a superscript at the instance of each quote in the text with a corresponding footnote at the end of the page. All footnotes are compiled into endnotes at the end of the work, on the bibliography page. [14] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source
• For Author Date, you will use parenthetical in-text citations that include author last name and year published, using no punctuation between name and year. The full version of each parenthetical citation is listed alphabetically on the references page. For example: (Simon 2011) Simon is the author last name, and 2011 is the year.
• You will need a citation directly after every sentence (or group of sentences if you're using the same source for multiple consecutive sentences) containing information you didn't think of yourself. These include: paraphrases, facts, statistics, quotes, and examples.

• If using a book, write down all pertinent information found on the copyright page, including the name of the publisher and the city and year of publication.
• For other sources, look for this information near the title of the piece you’re looking at. Publication date is often at the bottom of webpages.

• Title your references page “Bibliography” centered at the top of the page. Leave 2 blank lines between this title and the first entry, and one blank line between entries.
• Notes and Bibliography style uses footnotes for page endings and endnotes for chapter endings. The bibliography page will be an alphabetized list of all sources in hanging indent.
• An example format for a book is as follows: Last name, First name. Book Title . City: Publisher, Year.
• An example format for a chapter in a print scholarly journal is as follows: Author last name, first name. "Title of Chapter or Article." Book or journal Title Issue Number (Year): Page number range. (For an online scholarly journal article, tack on the following at the end: Date accessed. URL address.)
• When there is no known author, the entry should begin with the title of the document, whether it's a webpage, chapter, article, and so on.
• When there are multiple authors, the first listed author appears last name, first name, so that the citation is alphabetized by this author's last name. Subsequent authors are listed by first name, like this: Alcott, Louisa May, Charles Dickens, and Elizabeth Gaskell.
• Always end a citation with a period.

• When using Author Date style, title your references page “References” centered at the top of the page. Leave 2 blank lines between this title and the first entry, and 1 blank line between entries.
• Author Date style bibliographies should be organized alphabetically by last name (or by title if no author) in hanging indent.
• An example format for a book is as follows: Last name, first name. Year. Book Title . City Published: Publisher.
• An example format for a chapter in a print scholarly journal is as follows: Author last name, first name. Year. "Title of Chapter or Article." Book or journal title issue number: page numbers. (for an online scholarly journal article tack this onto the end: Date accessed. URL address.)
• An example format for a website is as follows: Name of Website. Year. "Page Title." Date last modified. Date accessed. URL address.

Expert Q&A

• You don't have to write each bibliography or reference entry on your own. You can download citation management software like Endnote [17] X Research source (purchase required on this one), Zotero [18] X Research source (it's free), or use websites like http://www.bibme.org/ and http://www.easybib.com/ . Select the name of your style manual before you begin creating citations. Copy and paste the citation into your bibliography or references list. Thanks Helpful 0 Not Helpful 0
• If you are assigned to write a paper or other written document in one of these styles, you need to purchase the style manual. It will contain nearly every instance not only of source citation, but paper formatting as well as grammar and punctuation that is unique to that style. Thanks Helpful 0 Not Helpful 0

• This article only lists how to cite research for each style manual. Each style has its own instructions for setting up the format of the essay, including heading, spacing, margins, font, and so on. Thanks Helpful 1 Not Helpful 0

You Might Also Like

• ↑ https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_in_text_citations_the_basics.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_formatting_and_style_guide.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_works_cited_page_books.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_author_authors.html
• ↑ https://owl.english.purdue.edu/owl/resource/560/01/
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_electronic_sources.html
• ↑ https://libguides.jcu.edu.au/apa/reference-list
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_author_authors.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_basic_rules.html
• ↑ https://www.chicagomanualofstyle.org/tools_citationguide.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/chicago_manual_17th_edition/cmos_formatting_and_style_guide/chicago_manual_of_style_17th_edition.html
• ↑ http://guides.nyu.edu/c.php?g=276562&p=1844734
• ↑ http://endnote.com
• ↑ https://www.zotero.org

About This Article

To reference an essay using MLA style, add a citation after any information you found through a source, like facts or quotes. When citing the reference, include the author’s name and the page number you pulled the information from in parenthesis, like “(Richards 456).” Once you’ve finished your essay, add a Words Cited page with all of the information you used to research your essay, like books or articles. To create a Works Cited page, list the sources in alphabetical order using the author’s last name, and include additional information, like year published and the medium. For more tips from our Writing reviewer, like how to reference an essay using APA style, read on! Did this summary help you? Yes No

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How to Write an Essay in APA Format

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

What Is APA Format?

Apa essay format basics.

• Steps to Follow

Frequently Asked Questions

If your instructor has asked you to write an APA format essay, it might at first seem like a daunting task, especially if you are accustomed to using another style such as MLA or Chicago. But you can master the rules of APA essay format, too.

An essay is one type of paper that can be written in APA format; others include lab reports, experimental reports, and case studies. Before you begin, familiarize yourself with some of the basic guidelines for writing a paper in APA format. Of course, it will also be important to follow any other formatting instructions that are part of your assignment.

How do you write an essay in APA format? The basic elements you need to include are:

• A title page
• An abstract
• An introduction, main body, and conclusion
• A reference section
• Proper APA formatting with regard to margins, layout, spacing, titles, and indentations

This article discusses how to write an essay in APA format, including the basic steps you should follow and tips for how to get started.

Whether you’re taking an introductory or graduate-level psychology class, chances are strong that you will have to write at least one paper during the course of the semester. In almost every case, you will need to write your paper in APA format, the official publication style of the American Psychological Association . It is also used for academic journals.

Such rules are generally the same whether you are writing a high school essay, college essay, or professional essay for publication.

APA format is used in a range of disciplines including psychology , education, and other social sciences. The format dictates presentation elements of your paper including spacing, margins, and how the content is structured.

Most instructors and publication editors have strict guidelines when it comes to how your format your writing. Not only does adhering to APA format allow readers to know what to expect from your paper, but it also means that your work will not lose critical points over minor formatting errors. 

While the formatting requirements for your paper might vary depending on your instructor's directions, writing APA essay format means you will most likely need to include a title page, abstract, introduction, body, conclusion, and reference sections.

Your APA format essay should have a title page . This title page should include the title of your paper, your name, and your school affiliation. In some instances, your teacher might require additional information such as the course title, instructor name, and the date.

• The title of your paper should be concise and clearly describe what your paper is about.
• Your title can extend to two lines, but it should be no longer than 12 words.

An abstract is a brief summary of your paper that immediately follows the title page. It is not required for student papers, according to APA style. However, your instructor may request one.

If you include an abstract , it should be no more than 100 to 200 words, although this may vary depending upon the instructor requirements.

Your essay should also include a reference list with all of the sources that were cited in your essay,

• The reference section is located at the end of your paper.
• References should be listed alphabetically by the last name of the author.
• References should be double-spaced.
• Any source that is cited in your paper should be included in your reference section.

When writing in APA essay format, the text will include the actual essay itself: The introduction, body, and conclusion.

• There should be uniform margins of at least one inch at the top, bottom, left, and right sides of your essay.
• The text should be in Times New Roman size 12 font or another serif typeface that is easily readable.
• Your paper should be double-spaced.
• Every page should include a page number in the top right corner.
• The first word of each paragraph in your paper should be indented one-half inch.

For professional papers (usually not student papers), every page of the essay also includes a running head at the top left. The running head is a shortened form of the title, often the first few words, and should be no more than 50 characters (including spaces).

Steps to a Successful APA Format Essay

In addition to ensuring that you cite your sources properly and present information according to the rules of APA style, there are a number of things you can do to make the writing process a little bit easier.

Choose a Topic

Start by choosing a good topic to write about. Ideally, you want to select a subject that is specific enough to let you fully research and explore the topic, but not so specific that you have a hard time finding sources of information.

If you choose something too specific, you may find yourself with not enough to write about. If you choose something too general, you might find yourself overwhelmed with information.

Research Your Topic

Start doing research as early as possible. Begin by looking at some basic books and articles on your topic to help develop it further. What is the question you are going to answer with your essay? What approach will you take to the topic?

Once you are more familiar with the subject, create a preliminary source list of potential books, articles, essays, and studies that you may end up using in your essay.

Remember, any source used in your essay must be included in your reference section. Conversely, any source listed in your references must be cited somewhere in the body of your paper.

Write Your Rough Draft

With research in hand, you are ready to begin. Some people like to create an outline to organize their argument prior to drafting. You may want to start with a very rough outline, and then add details.

Once you have a detailed outline, the next step is to translate it from notes to complete sentences and paragraphs. Remember, this is a first draft. It doesn't have to be perfect.

As you write your paper in APA essay format, be sure to keep careful track of the sources that you cite.

How do you start an APA paper? Your paper should begin with an introduction that includes a thesis statement that presents your main ideas, points, or arguments. Your introduction should start on the third page of your paper (after the title page and abstract). The title of your paper should be centered, bolded, and typed in title case at the top of the page.

Review and Revise

After you have prepared a rough draft of your essay, it's time to revise, review, and prepare your final draft. In addition to making sure that your writing is cohesive and supported by your sources, you should also check carefully for typos, grammar errors, and possible formatting mistakes.

When citing information or quotations taken from an interview, APA format requires that you cite the source, how the information was collected, and the date of the interview. They should not be included in the reference section, however, because they are not something that can be located by a reader in any published source or searchable database.

Instead, the information should be cited parenthetically in the main body of the text. For example: “There was an increase in the number of college students who screened positive for depression/anxiety” (R. Heathfield, personal communication, May 9, 2021).

If the essay is in a chapter of a book, edited collection, or anthology, APA format states that you should cite the last name, first name, title of essay, title of collection, publisher, year, and page range. For example: Smith, John, "The Light House," A Book of Poems , editing by Peter Roberts, Allworth Press, 2005, pp. 20-25.

According to APA format, a two-part essay is formatted the same as an essay, however, you'll need to create two title pages.

If you're including a short direct quote in your APA-format essay, you will need to cite the author, year of publication, and page number (p.) or page number span (pp.). Quotations longer than 40 words should omit the quotation marks and be put in the text using block quotation formatting, on its own line and indented 1/2 inch from the left margin.

The cover page or "title page" in APA essay format should always include the title of your paper, your name, and school affiliation as well as the course title, instructor name, and date, if requested by your teacher.

Nagda S.  How to write a scientific abstract.   J Indian Prosthodont Soc.  2013;13(3):382-383. doi:10.1007/s13191-013-0299-x

American Psychological Association.  Publication Manual of the American Psychological Association  (7th ed.). Washington DC: The American Psychological Association; 2019.

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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For information on how to reference this website for non-academic purposes, see the SkillsYouNeed referencing guide .

Citing and referencing information can be daunting for students who do not understand the principles.

There are numerous ways to reference. Different institutions, departments or lecturers may require different styles so check with your teacher, lecturer or instructor if you are unsure.

Bad referencing is a common way for students to lose marks in assignments so it is worth taking the time and effort to learn how to reference correctly.

Why Do We Cite and Reference?

When writing any academic essay, paper, report or assignment, you need to highlight your use of other author's ideas and words so that you:

• Give the original author credit for their own ideas and work
• Validate your arguments
• Enable the reader to follow up on the original work if they wish to
• Enable the reader to see how dated the information might be
• Prove to your tutors/lecturers that you have read around the subject
• Avoid plagiarism

Referencing Styles

There are many different styles of referencing, including Harvard, APA (from the American Psychological Association), Chicago and Vancouver. The Harvard referencing system is of the most popular styles and the remainder of this article deals with this system. However, your university may prefer the use of a different system so check with your lecturer or in your course information as to which referencing style to use.

What is Plagiarism?

• Presenting another's ideas as if they are your own – either directly or indirectly
• Copying or pasting text and images without saying where they came from
• Not showing when a quote is a quote
• Summarising information without showing the original source
• Changing a few words in a section of text without acknowledging the original author

Plagiarism is a serious academic offence.  You are likely to be awarded 0% for an assignment which has evidence of plagiarism. If you continue to plagiarise then you may be excluded from your course.

Most universities will want a signed declaration with submitted work to say that you have not plagiarised. 

Universities use anti-plagiarism software to quickly find plagiarised work. This software usually draws on huge databases of web sources, books, journals and all previously submitted student work to compare your work to so you will be found out.

Therefore, if you plagiarise, you are likely to be caught so don't take the risk and reference properly.

Be Organised

When writing an essay, report, dissertation or other piece of academic work, the key to referencing is organisation. As you go along, keep notes of the books and journal articles you have read and the websites you have visited as part of your research process.

There are various tools to help here. Your university may be able to provide you with some specialist software (Endnote – www.endnote.com ) or you can simply keep a list in a document or try Zotero ( www.zotero.org ) a free plugin for the Firefox browser.

What Needs to be Recorded?

Record as much information as possible in references to make finding the original work simple.

Include the author/s name/s where possible. You should write the surname (last name) first followed by any initials.  If there are more than three authors then you can cite the first author and use the abbreviation 'et al', meaning 'and all'.

For one, two or three authors: Jones A, Davies B, Jenkins C

For more than three authors Jones A et al.

For some sources, especially websites, the name of the author may not be known. In such cases either use the organisation name or the title of the document or webpage.

Example:  SkillsYouNeed or What Are Interpersonal Skills.

Date of Publication

You should include the year of publication or a more specific date if appropriate, for journal or newspaper articles/stories. For webpages look for the when the page was last updated. Include dates in brackets (2020) after author information. If no date can be established, then put (no date).

Title of Piece

Include the title of the piece; this could be the name of the book, the title of a journal article or webpage. Titles are usually written in italics . For books you should also include the edition (if not the first) to make finding information easier. Often when books are republished information remains broadly the same but may be reordered, therefore page numbers may change between editions.

Publisher Information

Usually only relevant for books, but for these you should include the publisher name and place of publication.

Page Numbers

If you are referencing a particular part of a book, then you should include the page number/s you have used in your work. Use p. 123 to indicate page 123 or pp. 123-125 to indicate multiple pages.

URL and Date Accessed

For webpages you need to include the full URL of the page (http://www... etc.) and the date you last accessed the page. The web is not static and webpages can be changed/updated/removed at any time, so it is therefore important to record when you found the information you are referencing.

Once you have recorded the information, you have everything you need in order to reference correctly. Your work should be both referenced in the text and include a reference list or bibliography at the end. The in text reference is an abbreviated version of the full reference in your reference list.

Direct Quotes

If you are directly quoting in your text you should enclose the quote in quotation marks, and include author information:

"Communication is simply the act of transferring information from one place to another." SkillsYouNeed (2019)

For longer direct quotations it may be neater to indent the quotation in its own paragraph.

Your reference list should then include the full version of the reference:

SkillsYouNeed (2022) What is Communication? [online] available at www.skillsyouneed.com/ips/what-is-communication.html (Accessed October 14 2022)

For a book you would use, in your text:

“Long before the twelfth century rhetoricians had collected quotations, particularly from classical authors, into anthologies called florilegia…” (Clanchy, M.T, 1993)

The reference list would then include the full reference:

Clanchy, M.T. (1993) From Memory to Written Record England 1066 – 1307 Oxford, Blackwell, p. 115

The same rules also apply when you are referencing indirectly and you have not included a direct quote. If you have used the ideas of another source, reference both in your text at the relevant point and in your reference list or bibliography at the end of your document.

Further Reading from Skills You Need

The Skills You Need Guide for Students

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Our eBooks are ideal for students at all stages of education, school, college and university. They are full of easy-to-follow practical information that will help you to learn more effectively and get better grades.

Additional Information

When quoting you may sometimes want to leave out some words , in which case use … (three dots).

"Communication is … transferring information from one place to another"

If you need to add words to a quote for clarity, then square brackets are used:

“Communication is simply the act [in communication skills] of transferring information from one place to another.”

You can use [sic] to note an original error and/or foreign spelling , SkillsYouNeed is a UK site and therefore uses UK spellings:

"The color [sic] of the water..."

Continue to: Common Mistakes in Writing Sources of Information

See Also: Note-Taking for Reading What is Theory? | Writing an Essay | Punctuation

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• Referencing

A Quick Guide to Referencing | Cite Your Sources Correctly

Referencing means acknowledging the sources you have used in your writing. Including references helps you support your claims and ensures that you avoid plagiarism .

There are many referencing styles, but they usually consist of two things:

• A citation wherever you refer to a source in your text.
• A reference list or bibliography at the end listing full details of all your sources.

The most common method of referencing in UK universities is Harvard style , which uses author-date citations in the text. Our free Harvard Reference Generator automatically creates accurate references in this style.

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Table of contents

Referencing styles, citing your sources with in-text citations, creating your reference list or bibliography, harvard referencing examples, frequently asked questions about referencing.

Each referencing style has different rules for presenting source information. For in-text citations, some use footnotes or endnotes , while others include the author’s surname and date of publication in brackets in the text.

The reference list or bibliography is presented differently in each style, with different rules for things like capitalisation, italics, and quotation marks in references.

Your university will usually tell you which referencing style to use; they may even have their own unique style. Always follow your university’s guidelines, and ask your tutor if you are unsure. The most common styles are summarised below.

Harvard referencing, the most commonly used style at UK universities, uses author–date in-text citations corresponding to an alphabetical bibliography or reference list at the end.

Harvard Referencing Guide

Vancouver referencing, used in biomedicine and other sciences, uses reference numbers in the text corresponding to a numbered reference list at the end.

Vancouver Referencing Guide

APA referencing, used in the social and behavioural sciences, uses author–date in-text citations corresponding to an alphabetical reference list at the end.

APA Referencing Guide APA Reference Generator

MHRA referencing, used in the humanities, uses footnotes in the text with source information, in addition to an alphabetised bibliography at the end.

MHRA Referencing Guide

OSCOLA referencing, used in law, uses footnotes in the text with source information, and an alphabetical bibliography at the end in longer texts.

OSCOLA Referencing Guide

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In-text citations should be used whenever you quote, paraphrase, or refer to information from a source (e.g. a book, article, image, website, or video).

Quoting and paraphrasing

Quoting is when you directly copy some text from a source and enclose it in quotation marks to indicate that it is not your own writing.

Paraphrasing is when you rephrase the original source into your own words. In this case, you don’t use quotation marks, but you still need to include a citation.

In most referencing styles, page numbers are included when you’re quoting or paraphrasing a particular passage. If you are referring to the text as a whole, no page number is needed.

In-text citations

In-text citations are quick references to your sources. In Harvard referencing, you use the author’s surname and the date of publication in brackets.

Up to three authors are included in a Harvard in-text citation. If the source has more than three authors, include the first author followed by ‘ et al. ‘

The point of these citations is to direct your reader to the alphabetised reference list, where you give full information about each source. For example, to find the source cited above, the reader would look under ‘J’ in your reference list to find the title and publication details of the source.

Placement of in-text citations

In-text citations should be placed directly after the quotation or information they refer to, usually before a comma or full stop. If a sentence is supported by multiple sources, you can combine them in one set of brackets, separated by a semicolon.

If you mention the author’s name in the text already, you don’t include it in the citation, and you can place the citation immediately after the name.

• Another researcher warns that the results of this method are ‘inconsistent’ (Singh, 2018, p. 13) .
• Previous research has frequently illustrated the pitfalls of this method (Singh, 2018; Jones, 2016) .
• Singh (2018, p. 13) warns that the results of this method are ‘inconsistent’.

The terms ‘bibliography’ and ‘reference list’ are sometimes used interchangeably. Both refer to a list that contains full information on all the sources cited in your text. Sometimes ‘bibliography’ is used to mean a more extensive list, also containing sources that you consulted but did not cite in the text.

A reference list or bibliography is usually mandatory, since in-text citations typically don’t provide full source information. For styles that already include full source information in footnotes (e.g. OSCOLA and Chicago Style ), the bibliography is optional, although your university may still require you to include one.

Format of the reference list

Reference lists are usually alphabetised by authors’ last names. Each entry in the list appears on a new line, and a hanging indent is applied if an entry extends onto multiple lines.

Different source information is included for different source types. Each style provides detailed guidelines for exactly what information should be included and how it should be presented.

Below are some examples of reference list entries for common source types in Harvard style.

• Chapter of a book
• Journal article

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Your university should tell you which referencing style to follow. If you’re unsure, check with a supervisor. Commonly used styles include:

• Harvard referencing , the most commonly used style in UK universities.
• MHRA , used in humanities subjects.
• APA , used in the social sciences.
• Vancouver , used in biomedicine.
• OSCOLA , used in law.

Your university may have its own referencing style guide.

If you are allowed to choose which style to follow, we recommend Harvard referencing, as it is a straightforward and widely used style.

References should be included in your text whenever you use words, ideas, or information from a source. A source can be anything from a book or journal article to a website or YouTube video.

If you don’t acknowledge your sources, you can get in trouble for plagiarism .

To avoid plagiarism , always include a reference when you use words, ideas or information from a source. This shows that you are not trying to pass the work of others off as your own.

You must also properly quote or paraphrase the source. If you’re not sure whether you’ve done this correctly, you can use the Scribbr Plagiarism Checker to find and correct any mistakes.

Harvard referencing uses an author–date system. Sources are cited by the author’s last name and the publication year in brackets. Each Harvard in-text citation corresponds to an entry in the alphabetised reference list at the end of the paper.

Vancouver referencing uses a numerical system. Sources are cited by a number in parentheses or superscript. Each number corresponds to a full reference at the end of the paper.

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In-Text Citations

Resources on using in-text citations in APA style

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Write it Right - A guide to Harvard referencing style

• Referencing

The Harvard Referencing Style

What is citing, citing page numbers in text - some rules, using direct quotations, how to cite in the body of your text, secondary referencing, using charts, images, figures in the body of your text.

• Paraphrasing
• Reference List & Bibliography
• Elements in References
• Journal articles
• Online journals
• Newspaper articles
• Online newspapers
• Internet sources
• Government and legal publications
• Patents and standards
• Miscellaneous

The Harvard referencing style (also known as ‘author-date’) is commonly used at TUS Midwest. There are two elements to the Harvard referencing style. This means when you reference using the Harvard system, you have to do two things: 

• Include an author-date citation each time you refer to a source in the body of your essay. Note: also, include the page number if it is a direct quotation.
• Compile a complete reference list of all the sources that you cited throughout your essay on a separate page at the end of your essay. Note: this list must be in alphabetical order according to the first author's surname.

In summary, when you are writing up your college projects, you must remember to acknowledge the other authors you are using in two places:

• in the text of your assignment (in-text citations), and,
• at the end of your assignment (reference list).

If you have used the author’s exact words (direct quotation) or the author’s ideas (paraphrasing) from a book, journal article, etc. you must acknowledge this in your text. This is referred to as in-text citing:

In-text citations give the brief (abbreviated) details of the work that you are quoting from, or to which you are referring in your text. These citations will then link to the full reference in the reference list at the end of your work, which is arranged in alphabetical order by author (Pears and Shields, 2019, p.7).

Author prominent citing  This citation method gives prominence to the author’s surname (family name) as part of your sentence with the date and page number in parentheses (round brackets).  Note : The page number is necessary if you are quoting directly. 

Information prominent citing This citation method gives prominence to the information with the required referencing details in parentheses at the end of the citation.

Author(s) name

• For one author, use surname of author only. There is no need to include initials. Example - (Barr, 2016, p. 22)
• For two authors, use both authors’ surnames linked by ‘and’.  Example - (Tabrizi and Rahmani, 2021, p. 13).
• For three or more authors, use the first author’s surname and et al.   Example - (O'Neill  et al ., 2019, p. 120). 
• Give full four digits for the year.

Quotations should be used sparingly, selected carefully, used in context, integrated into your text, and reproduced exactly (including the words, spelling, punctuation, capitalisation and paraphrasing of the original writer).  Short quotations Short quotations (fewer than 30 words) should:

• be incorporated into your sentence without disrupting the flow of your paragraph,
• have single quotation marks,
• have the full stop after the citation, and,
• keep the same font size.

Long quotations   Long quotations (more than 30 words) should:

• be introduced in your own words,
• begin on a new line,
• be fully indented by default (i.e. 1.27 cm) from the left margin,
• be in single line spacing.

Separate the quotation from the lead-in statement with one blank line. The lead-in statement ends with a colon(:). Separate the quotation from the text that follows it with one blank line.

Quotation marks

• Quotation marks are not used for longer quotations.
• When using an information prominent long quotation, the full stop is included after the last sentence of the quotation after the citation.

Words omitted from quotations

• To omit unnecessary words from quotations, use an ellipsis … (3 dots). Note: Make sure the quotation still has the same meaning.
• If the quotation does not begin at the start of a sentence, an ellipsis should be used to convey this.

When you cite someone else’s work, you must state the author/editor and the date of publication. If the work has two authors/editors, you must cite both names. Don't forget to include page numbers for direct quotations.  There is no need to include the title, place of publication etc. These details are listed in the reference list at the end of your essay .  

For a work that has three or more authors/editors, the abbreviation, et al . is used after the first author’s name. 

For a work that has the same author/editor, and was written in the same year as an earlier citation, you must use a lower case letter after the date to differentiate between the two. 

Citing from books with chapters written by different authors  Some books may contain chapters written by several different authors. In this case the author who wrote the chapter should be cited not the editor of the book.

If you are reading a source by one author, for example, Garvey (2019) and he cites or quotes the work of another author, for example, Taylor (1996) you may cite or quote the original work, Taylor (1996) as a secondary reference. Note: It is always best practice to try and locate the original reference and secondary references should only be used if it is difficult to access the original work

Example In-text citation: Taylor’s observations (1996, cited in Garvey, 2019) are based on a genuine respect for nature.  OR  ‘Every living thing has a good of its own’ (Taylor, 1996, quoted in Garvey, 2019, p. 53).

Reference List: Garvey, J. (2019) The ethics of climate change: right and wrong in a warming world . London: Continuum.

Charts, images, figures etc. should be treated as direct quotations in that the author/editor, year and page number should be acknowledged in-text, and the full reference to the item should be listed in the reference list. 

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The Library, Technological University of the Shannon: Midwest

• FRONT MATTER
• TABLE OF CONTENTS

Citing Sources

Although many personal statements will not include any citation of sources, in some cases—particularly if your work is in the sciences and you need to provide a brief literature review—you will need to cite sources at the end of your essay in a “References” section. Chapter 1 discusses the ethical concerns associated with source citation as you write personal essays (see "Student Writing and Ethics" section). To address the more practical problem of citation mechanics, below are ways to address common mechanics challenges:

• In the simplest terms, the two basic citation styles appropriate for personal essays can be referred to as the number system and author-year system. In the number system, a number is provided in the text corresponding to a numbered source cited fully at the essay’s end. In the author-year system, the writer provides the author and year of the source in parentheses after the corresponding text, then cites the source fully at the end of the essay in a references list alphabetized by authors’ last names.
• When you use a references section at the end of an essay, provide full bibliographic information for your sources—e.g., author, article title, book or journal title, relevant page numbers, and website address if relevant. Because the mechanics of citation vary slightly from one journal to the next, most writers model their references page on that of a respected journal in their field.
• For convenience in a personal essay, it is acceptable to cite sources—especially if you use just one or two—in numbered footnote form at the bottom of the page. However, if you have more than a few sources, a separate section entitled “References” at the end of the essay is best.
• Sometimes, rather than a formal footnote or end citation, a contextual narrative citation will be sufficient if you are using a well-known quote or paraphrase (“Einstein said that imagination is more important than knowledge”) or attributing authorship and context directly (“As stated in a funding proposal authored by our research group, the hypothesis for my thesis research is . . .”).
• If you include figures or tables taken or adapted from a published source, cite the source directly in the figure or table caption, using the same citation style employed throughout the essay.

To see the above tips in action, browse through the sample essays in the later chapters of this manual, where you will find ample evidence of how other writers met their source citation challenges. For further detail about source citation practices, you can also go to Chapter 5 of the manual Style for Students Online .

For discipline-specific examples of citation form, turn to these two URLs:

“Research and Documentation Online” (download) from popular style guide author Diana Hacker

“Write & Cite: Writing Resources: Citing” article from San Antonio College

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Writing Research Papers

• What Types of References Are Appropriate?

When writing a research paper, there are many different types of sources that you might consider citing.  Which are appropriate?  Which are less appropriate?  Here we discuss the different types of sources that you may wish to use when working on a research paper.   

Please note that the following represents a general set of recommended guidelines that is not specific to any class and does not represent department policy.  The types of allowable sources may vary by course and instructor.

Highly appropriate: peer-reviewed journal articles

In general, you should primarily cite peer-reviewed journal articles in your research papers.  Peer-reviewed journal articles are research papers that have been accepted for publication after having undergone a rigorous editorial review process.  During that review process, the article was carefully evaluated by at least one journal editor and a group of reviewers (usually scientists that are experts in the field or topic under investigation).  Often the article underwent revisions before it was judged to be satisfactory for publication. 

Most articles submitted to high quality journals are not accepted for publication.  As such, research that is successfully published in a respected peer-reviewed journal is generally regarded as higher quality than research that is not published or is published elsewhere, such as in a book, magazine, or on a website.  However, just because a study was published in a peer-reviewed journal does not mean that it is free from error or that its conclusions are correct.  Accordingly, it is important to critically read and carefully evaluate all sources, including peer-reviewed journal articles.

Tips for finding and using peer-reviewed journal articles:

• Many databases, such as PsycINFO, can be set to only search for peer-reviewed journal articles. Other search engines, such as Google Scholar, typically include both peer-reviewed and not peer-reviewed articles in search results, and thus should be used with greater caution. 
• Even though a peer-reviewed journal article is, by definition, a source that has been carefully vetted through an editorial process, it should still be critically evaluated by the reader. 

Potentially appropriate: books, encyclopedias, and other scholarly works

Another potential source that you might use when writing a research paper is a book, encyclopedia, or an official online source (such as demographic data drawn from a government website).  When relying on such sources, it is important to carefully consider its accuracy and trustworthiness.  For example, books vary in quality; most have not undergone any form of review process other than basic copyediting.  In many cases, a book’s content is little more than the author’s informed or uninformed opinion. 

However, there are books that have been edited prior to publication, as is the case with many reputable encyclopedias; also, many books from academic publishers are comprised of multiple chapters, each written by one or more researchers, with the entire volume carefully reviewed by one or more editors.  In those cases, the book has undergone a form of peer review, albeit often not as rigorous as that for a peer-reviewed journal article.

Tips for using books, encyclopedias, and other scholarly works:

• When using books, encyclopedias, and other scholarly works (that is, works written or produced by researchers, official agencies, or corporations), it is important to very carefully evaluate the quality of that source.
• If the source is an edited volume (in which case in the editor(s) will be listed on the cover), is published by a reputable source (such as Academic Press, MIT Press, and others), or is written by a major expert in the field (such as a researcher with a track record of peer-reviewed journal articles on the subject), then it is more likely to be trustworthy.
• For online encyclopedias such as Wikipedia, an instructor may or may not consider that an acceptable source (by default, don’t assume that a non-peer reviewed source will be considered acceptable). It is best to ask the instructor for clarification. 1

Usually inappropriate: magazines, blogs, and websites  

Most research papers can be written using only peer-reviewed journal articles as sources.  However, for many topics it is possible to find a plethora of sources that have not been peer-reviewed but also discuss the topic.  These may include articles in popular magazines or postings in blogs, forums, and other websites.  In general, although these sources may be well-written and easy to understand, their scientific value is often not as high as that of peer-reviewed articles.  Exceptions include some magazine and newspaper articles that might be cited in a research paper to make a point about public awareness of a given topic, to illustrate beliefs and attitudes about a given topic among journalists, or to refer to a news event that is relevant to a given topic. 

Tips for using magazines, blogs, and websites:

• Avoid such references if possible. You should primarily focus on peer-reviewed journal articles as sources for your research paper.  High quality research papers typically do not rely on non-academic and not peer-reviewed sources.
• Refer to non-academic, not peer-reviewed sources sparingly, and if you do, be sure to carefully evaluate the accuracy and scientific merit of the source.

Downloadable Resources

• How to Write APA Style Research Papers (a comprehensive guide) [ PDF ]
• Tips for Writing APA Style Research Papers (a brief summary) [ PDF ]

Further Resources

How-To Videos     

• Writing Research Paper Videos

Databases and Search Engines (may require connection to UCSD network)

• Google Scholar
• PubMed (NIH/NLM)
• Web of Science  

UCSD Resources on Finding and Evaluating Sources

• UCSD Library Databases A-Z
• UCSD Library Psychology Research Guide: Start Page
• UCSD Library Psychology Research Guide : Finding Articles
• UCSD Library Psychology Research Guide : Evaluating Sources

External Resources

• Critically Reading Journal Articles from PSU/ Colby College
• How to Seriously Read a Journal Article from Science Magazine
• How to Read Journal Articles from Harvard University
• How to Read a Scientific Paper Infographic from Elsevier Publishing
• Tips for searching PsycINFO from UC Berkeley Library
• Tips for using PsycINFO effectively from the APA Student Science Council

1 Wikipedia articles vary in quality; the site has a peer review system and the very best articles ( Featured Articles ), which go through a multi-stage review process, rival those in traditional encyclopedias and are considered the highest quality articles on the site.

Prepared by s. c. pan for ucsd psychology, graphic adapted from  t-x-generic-apply.svg , a public domain creation by the tango desktop project..

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• Research Paper Structure
• Formatting Research Papers
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• Evaluating References and Taking Notes
• Citing References
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• Academic Integrity and Avoiding Plagiarism
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Why is Referencing Important?

Citations are not used simply to avoid plagiarism; they have other important roles too..

Referencing allows you to acknowledge the contribution of other writers and researchers in your work. Any university assignments that draw on the ideas, words or research of other writers must contain citations.

Referencing is also a way to give credit to the writers from whom you have borrowed words and ideas. By citing the work of a particular scholar, you acknowledge and respect the intellectual property rights of that researcher. As a student or academic, you can draw on any of the millions of ideas, insights and arguments published by other writers, many of whom have spent years researching and writing. All you need to do is acknowledge their contribution to your assignment.

Referencing is a way to provide evidence to support the assertions and claims in your own assignments. By citing experts in your field, you are showing your marker that you are aware of the field in which you are operating. Your citations map the space of your discipline and allow you to navigate your way through your chosen field of study, in the same way that sailors steer by the stars.

References should always be accurate, allowing your readers to trace the sources of information you have used. The best way to make sure you reference accurately is to keep a record of all the sources you used when reading and researching for an assignment.

Citations also make your writing more persuasive. 

Exercise: Look at the two paragraphs below: which one seems more authoritative?

The paragraphs are identical, except for the absence of citations from paragraph 1.

The first paragraph may be just as interesting as the second, but within an academic context, a context that requires you to show from where you have taken ideas, the second has far more authority, it is more persuasive. It shows that the ideas you are discussing are matters that are important to your particular academic community.

What kind of information do I need to reference?

Printed books are not the only sources that require acknowledgement. ANY words, ideas or information taken from ANY source requires a reference.

Reference when you are using words or ideas from:

• books and journal articles
• newspapers and magazines
• pamphlets or brochures
• films, documentaries, television programs or advertisements
• websites or electronic resources
• letters, emails, online discussion forums
• personal interviews
• lecturers or tutors. (Not always necessary but check with your lecturer or tutor about their preferences before you draw on their ideas.)

You also need to reference when you reprint any diagrams, illustrations, charts or pictures.

No need to reference when you are:

• writing your own observations or experiment results, for example, a report on a field trip
• writing about your own experiences, for example, a reflective journal
• writing your own thoughts, comments or conclusions in an assignment
• evaluating or offering your own analysis
• using 'common knowledge' (facts that can be found in numerous places and are likely to be known by a lot of people) or folklore
• using generally accepted facts or information. This will vary in different disciplines of study. If in doubt, ask your tutor.
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• Working with sources

How to Find Sources | Scholarly Articles, Books, Etc.

Published on June 13, 2022 by Eoghan Ryan . Revised on May 31, 2023.

It’s important to know how to find relevant sources when writing a  research paper , literature review , or systematic review .

The types of sources you need will depend on the stage you are at in the research process , but all sources that you use should be credible , up to date, and relevant to your research topic.

There are three main places to look for sources to use in your research:

Research databases

• Your institution’s library
• Other online resources

Table of contents

Library resources, other online sources, other interesting articles, frequently asked questions about finding sources.

You can search for scholarly sources online using databases and search engines like Google Scholar . These provide a range of search functions that can help you to find the most relevant sources.

If you are searching for a specific article or book, include the title or the author’s name. Alternatively, if you’re just looking for sources related to your research problem , you can search using keywords. In this case, it’s important to have a clear understanding of the scope of your project and of the most relevant keywords.

Databases can be general (interdisciplinary) or subject-specific.

• You can use subject-specific databases to ensure that the results are relevant to your field.
• When using a general database or search engine, you can still filter results by selecting specific subjects or disciplines.

Example: JSTOR discipline search filter

Check the table below to find a database that’s relevant to your research.

Google Scholar

To get started, you might also try Google Scholar , an academic search engine that can help you find relevant books and articles. Its “Cited by” function lets you see the number of times a source has been cited. This can tell you something about a source’s credibility and importance to the field.

Example: Google Scholar “Cited by” function

Boolean operators

Boolean operators can also help to narrow or expand your search.

Boolean operators are words and symbols like AND , OR , and NOT that you can use to include or exclude keywords to refine your results. For example, a search for “Nietzsche NOT nihilism” will provide results that include the word “Nietzsche” but exclude results that contain the word “nihilism.”

Many databases and search engines have an advanced search function that allows you to refine results in a similar way without typing the Boolean operators manually.

Example: Project Muse advanced search

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You can find helpful print sources in your institution’s library. These include:

• Journal articles
• Encyclopedias
• Newspapers and magazines

Make sure that the sources you consult are appropriate to your research.

You can find these sources using your institution’s library database. This will allow you to explore the library’s catalog and to search relevant keywords. You can refine your results using Boolean operators .

Once you have found a relevant print source in the library:

• Consider what books are beside it. This can be a great way to find related sources, especially when you’ve found a secondary or tertiary source instead of a primary source .
• Consult the index and bibliography to find the bibliographic information of other relevant sources.

You can consult popular online sources to learn more about your topic. These include:

• Crowdsourced encyclopedias like Wikipedia

You can find these sources using search engines. To refine your search, use Boolean operators in combination with relevant keywords.

However, exercise caution when using online sources. Consider what kinds of sources are appropriate for your research and make sure the sites are credible .

Look for sites with trusted domain extensions:

• URLs that end with .edu are educational resources.
• URLs that end with .gov are government-related resources.
• DOIs often indicate that an article is published in a peer-reviewed , scientific article.

Other sites can still be used, but you should evaluate them carefully and consider alternatives.

If you want to know more about ChatGPT, AI tools , citation , and plagiarism , make sure to check out some of our other articles with explanations and examples.

• ChatGPT vs human editor
• ChatGPT citations
• Is ChatGPT trustworthy?
• Using ChatGPT for your studies
• What is ChatGPT?
• Chicago style
• Paraphrasing

 Plagiarism

• Types of plagiarism
• Self-plagiarism
• Avoiding plagiarism
• Academic integrity
• Consequences of plagiarism
• Common knowledge

You can find sources online using databases and search engines like Google Scholar . Use Boolean operators or advanced search functions to narrow or expand your search.

For print sources, you can use your institution’s library database. This will allow you to explore the library’s catalog and to search relevant keywords.

It is important to find credible sources and use those that you can be sure are sufficiently scholarly .

• Consult your institute’s library to find out what books, journals, research databases, and other types of sources they provide access to.
• Look for books published by respected academic publishing houses and university presses, as these are typically considered trustworthy sources.
• Look for journals that use a peer review process. This means that experts in the field assess the quality and credibility of an article before it is published.

When searching for sources in databases, think of specific keywords that are relevant to your topic , and consider variations on them or synonyms that might be relevant.

Once you have a clear idea of your research parameters and key terms, choose a database that is relevant to your research (e.g., Medline, JSTOR, Project MUSE).

Find out if the database has a “subject search” option. This can help to refine your search. Use Boolean operators to combine your keywords, exclude specific search terms, and search exact phrases to find the most relevant sources.

There are many types of sources commonly used in research. These include:

You’ll likely use a variety of these sources throughout the research process , and the kinds of sources you use will depend on your research topic and goals.

Scholarly sources are written by experts in their field and are typically subjected to peer review . They are intended for a scholarly audience, include a full bibliography, and use scholarly or technical language. For these reasons, they are typically considered credible sources .

Popular sources like magazines and news articles are typically written by journalists. These types of sources usually don’t include a bibliography and are written for a popular, rather than academic, audience. They are not always reliable and may be written from a biased or uninformed perspective, but they can still be cited in some contexts.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Ryan, E. (2023, May 31). How to Find Sources | Scholarly Articles, Books, Etc.. Scribbr. Retrieved April 2, 2024, from https://www.scribbr.com/working-with-sources/finding-sources/

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Thank you. payment completed., you will receive an email from us to confirm your registration, please click the link in the email to activate your account., there was error during payment, orcid profile found in public registry, download history, a guide to citing and referencing your own work.

• Charlesworth Author Services
• 15 September, 2021

You will probably already know that you should always be very careful about citing and referencing other work in your research. Failure to do so constitutes plagiarism and is considered a highly unethical academic practice. But what about using, citing and referencing your own work? In this article, we break down everything you need to know about citing and referencing your previous research. 

Why do you need to reference your own work?  

You may be wondering why you need to reference your own work, since you are the same author and the content you are citing was generated by the same person – yourself. However, each unit of work is considered distinct and original , and must be cited and referenced as such. Any previously written and/or published work, even if it is your own, is not considered the same work that you are writing now and must be treated as a separate entity.

If you are citing or using content from several different books and journal articles written by the same author/academic, you would commonly reference each work separately. You should therefore treat your work in the same way. When you reuse any of your own previous research, you must accompany each piece of work with the right citations and references just as you would with any other literature or media. Failure to fully reference your own work is considered plagiarism , just as it would be if you did not properly reference anyone else’s work that you use.

When would you need to cite your own work?

You might want to refer to a particular element of some previous research that you have conducted and published – for example, some specific results, a significant finding or a principal argument.

Any research that has been formally conducted, presented and/or published, in whatever capacity, should be considered an original piece of work and must be properly credited and referenced if you use it. This work can include, among others, essays or dissertations completed in any of your degrees, conference and journal papers, research posters , articles published in journals, blogs or other media.

Here is an example : Let’s say you are investigating a specific hypothesis in your PhD research. Later, in a post-doctoral research project, you re-examine that hypothesis using a different theoretical framework and method. You might want to discuss the methods you had previously used and the main conclusions formed from that study.

It would not be enough, nor ethical, to simply state the previous methods and results . Instead, you should also clearly cite and contextualise the points you are making – in other words, offer a brief description of the previous study, and clarify how and why it is relevant to your current study. Then, you should also include the full, complete reference of that previous work you are citing.

Do note that publishing the same research in multiple languages, without proper citation and referencing, is also considered self-plagiarism and will not be counted as original work. So, if you have published your work in a different language, you must treat this as a separate and original piece of work and reference it accordingly. 

How do you cite and reference your own work?

The easiest way to approach citations and references of your own work is to remember to treat your previous work exactly the same as any other work by anyone else. Just as you would cite, contextualise, explain, describe and reference any other writing or study that you use throughout your research, you should also do this for your own work. 

It might feel a bit strange to cite your own name and work as you write, but it is perfectly acceptable and correct. You would also include the full reference to that previous study in your reference list /bibliography. 

Here is an example of how you could cite and reference yourself: 

“While I previously argued for the nutritional benefits of eggs for children (Lee, 2020), this present study investigates how an excessive consumption of eggs in adolescents might actually be harmful to their physical health.”

Plagiarism, including self-plagiarism , is taken very seriously in the academic community and constitutes a grave ethical breach. If you are unsure whether you need to reference any of your previous work, always err on the site of caution and include the reference first. It is always better to be careful and conscientious about citing and referencing any and all work that you use in your research. You can always remove it later if it is not needed. 

Charlesworth Author Services , a trusted brand supporting the world’s leading academic publishers, institutions and authors since 1928. 

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Look up —

Seeing this eclipse is probably the highest-reward, lowest-effort thing one can do in life, don't not see it..

Eric Berger - Mar 25, 2024 1:32 pm UTC

If you enter "how to see the eclipse" into your favorite search engine, you're bound to see thousands—millions?—of helpful guides. Some of these are extremely detailed and thorough, almost as if the author were getting paid by the word or augmented by AI.

In reality, seeing a solar eclipse is just about the easiest thing one can do in one's life. Like, it's difficult to think of anything else that has the greatest reward-lowest effort ratio in life. You just need to know a couple of things. For the sake of simplicity, here is Ars' four-step guide to having a four-star eclipse-viewing experience. Steps are listed in order of ascending importance.

Step 1 : Identify the path of totality. This is where the total solar eclipse will be visible on April 8. The National Solar Observatory has a good map here . Click on the map to get the exact timing. It's time and place sorted.

Step 2 : Obtain solar eclipse glasses. These will be for sale everywhere, but don't forget them, and make sure they're ISO certified so your eyes don't get fried. A pair should cost about $2. You don't need to pay more than that.

Step 3 : Check the weather forecast. This is the second-most important step, after step 4. Seriously, nothing sucks worse than an eclipse with cloudy skies. (Well, an eclipse with cloudy skies and a car wreck on the way home sucks worse, so drive carefully.) Generally, the further southwest one goes on the path of totality, the greater the chance of clear skies. But that's climatology, not weather forecasting. As a meteorologist, I'm watching this closely, but it is still way too early to make a sensible forecast for which locations will see clear skies and which ones will be cloudy two weeks from now. We should have a better sense of things in about a week, especially for areas where high pressure will dominate. But for some locations, we may not really have a good handle on the forecast for days, or even hours, before totality. Yes, cloud cover can be that tricky.

Step 4 : Look up.

That's it. Really. You can go to a special eclipse party to see it, but the experience is going to be the same whether you're parked alongside a rural road in Arkansas or watching with thousands of friends in Indianapolis.

In reality, a total solar eclipse is probably going to be the most spectacular celestial event most of us see in our lifetimes. Certainly, there could be more spectacular ones. A supernova within 100 light-years of Earth would be amazing. Witnessing a large asteroid streaking through Earth's atmosphere before impact would be incredible.

Unfortunately, those would also be lethal.

reader comments

Channel ars technica.

A Solar Eclipse Means Big Science

By Katrina Miller April 1, 2024

• Share full article

On April 8, cameras all over North America will make a “megamovie” of the sun’s corona, like this one from the 2017 eclipse. The time lapse will help scientists track the behavior of jets and plumes on the sun’s surface.

There’s more science happening along the path of totality →

An app named SunSketcher will help the public take pictures of the eclipse with their phones.

Scientists will use these images to study deviations in the shape of the solar surface , which will help them understand the sun’s churning behavior below.

The sun right now is approaching peak activity. More than 40 telescope stations along the eclipse’s path will record totality.

By comparing these videos to what was captured in 2017 — when the sun was at a lull — researchers can learn how the sun’s magnetism drives the solar wind, or particles that stream through the solar system.

Students will launch giant balloons equipped with cameras and sensors along the eclipse’s path.

Their measurements may improve weather forecasting , and also produce a bird’s eye view of the moon’s shadow moving across the Earth.

Ham radio operators will send signals to each other across the path of totality to study how the density of electrons in Earth’s upper atmosphere changes .

This can help quantify how space weather produced by the sun disrupts radar communication systems.

(Animation by Dr. Joseph Huba, Syntek Technologies; HamSCI Project, Dr. Nathaniel Frissell, the University of Scranton, NSF and NASA.)

NASA is also studying Earth’s atmosphere, but far from the path of totality.

In Virginia, the agency will launch rockets during the eclipse to measure how local drops in sunlight cause ripple effects hundreds of miles away . The data will clarify how eclipses and other solar events affect satellite communications, including GPS.

Biologists in San Antonio plan to stash recording devices in beehives to study how bees orient themselves using sunlight , and how the insects respond to the sudden atmospheric changes during a total eclipse.

Two researchers in southern Illinois will analyze social media posts to understand tourism patterns in remote towns , including when visitors arrive, where they come from and what they do during their visits.

Results can help bolster infrastructure to support large events in rural areas.

Read more about the eclipse:

Our Coverage of the Total Solar Eclipse

Hearing the Eclipse:  A device called LightSound is being distributed to help the blind and visually impaired experience what they can’t see .

Maine Brac es Itself :  Businesses and planning committees are eager for visitors, but some in remote Aroostook County are not sure how they feel  about lying smack in the path of totality.

A Dark Day for Buffalo:  When the sky above Buffalo briefly goes dark  on the afternoon of April 8, the city will transcend its dreary place in the public consciousness — measured as it so often is by snowstorms — if only for about three minutes. The city can’t wait.

Under the Moon’s Shadow:  The late Jay Pasachoff, who spent a lifetime chasing eclipses , inspired generations of students to become astronomers by dragging them to the ends of the Earth for a few precarious moments of ecstasy.

A Rare Return:  It is rare for a total solar eclipse to hit the same place twice — once every 366 years on average. People in certain areas will encounter April 8’s eclipse  about seven years after they were near the middle of the path of the “Great American Eclipse.”

A Small City’s Big Plans:  Let the big cities have their eclipse mega-events. In Plattsburgh, N.Y., success looks different  for everyone stopping to look up.

 No Power Outages:  When the sky darkens during the eclipse, electricity production in some parts of the country will drop so sharply that it could theoretically leave tens of millions of homes in the dark. In practice, hardly anyone will notice  a sudden loss of energy.

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XZ Utils Backdoor — Everything You Need to Know, and What You Can Do

Akamai Security Intelligence Group

April 01, 2024

Executive summary

CVE-2024-3094 is a vulnerability discovered in the open-source library XZ Utils that stems from malicious code that was pushed into the library by one of its maintainers.

It was originally reported as an SSH authentication bypass backdoor, but further analysis indicates that the backdoor actually enables remote code execution (RCE).

The threat actor started contributing to the XZ project almost two years ago, slowly building credibility until they were given maintainer responsibilities. Such long-term operations are usually the realm of state-sponsored threat actors, but specific attribution does not currently exist.

Since the backdoor affects the latest XZ Utils releases, the recommended course of action is to downgrade to an uncompromised release. In this blog post, we offer other potential mitigations to limit the blast radius of the attack.

XZ Utils,, and its underlying library liblzma, are open-source projects that implement the lzma compression and decompression. They are included in many Linux distributions out of the box, are very popular with developers, and are used extensively throughout the Linux ecosystem.

Almost two years ago, a developer under the name of Jia Tan joined the project and started opening pull requests for various bug fixes or improvements. So far, nothing is out of the ordinary; this is how things work in the open-source world. Eventually, after building trust and credibility, Jia Tan began to receive permissions for the repository — first, commit permissions and, eventually, release manager rights.

It seems that as part of the effort to gain these permissions, Jia Tan used an interesting form of social engineering : They used fake accounts to send myriad feature requests and complaints about bugs to pressure the original maintainer, eventually causing the need to add another maintainer to the repository.

After contributing to the code for approximately two years, in 2023 Jia Tan introduced a few changes to XZ that were included as part of release 5.6.0. Among these changes was a sophisticated backdoor.

The backdoor

The backdoor is quite complex. For starters, you won’t find it in the xz GitHub repository (which is currently disabled, but that’s besides the point). In what seems like an attempt to avoid detection, instead of pushing parts of the backdoor to the public git repository, the malicious maintainer only included it in source code tarball releases. This caused parts of the backdoor to remain relatively hidden, while still being used during the build process of dependent projects .

The backdoor is composed of many parts introduced over multiple commits:

Using IFUNCs in the build process, which will be used to hijack the symbol resolve functions by the malware

Including an obfuscated shared object hidden in test files

Running a script set during the build process of the library that extracts the shared object (not included in the repository, only in releases, but added to .gitignore )

Disabling landlocking , which is a security feature to restrict process privileges

The execution chain also consists of multiple stages:

The malicious script build-to-host.m4 is run during the library’s build process and decodes the “test” file bad-3-corrupt_lzma2.xz into a bash script

The bash script then performs a more complicated decode process on another “test” file, good-large_compressed.lzma , decoding it into another script

That script then extracts a shared object liblzma_la-crc64-fast.o , which is added to the compilation process of liblzma

This process is admittedly hard to follow. We recommend Thomas Roccia ’s infographic for a great visual reference and in-depth analysis.

The shared object itself is compiled into liblzma, and replaces the regular function name resolution process. During (any) process loading, function names are resolved into actual pointers to the process memory, pointing at the binary code. The malicious library interferes with the function resolving process, so it could replace the function pointer for the OpenSSH function RSA_public_decrypt (Figure 1).

It then points that function to a malicious one of its own, which according to research published by Filippo Valsorda , extracts a command from the authenticating client’s certificate (after verifying that it is the threat actor) and passes it on to the system() function for execution, thereby achieving RCE prior to authentication.

For a more detailed explanation of the backdoor parts, you can read Andres Freund 's post on openwall .

Potential impact

Currently, it appears as though the backdoor is added to the SSH daemon on the vulnerable machine, enabling a remote attacker to execute arbitrary code . This means that any machine with the vulnerable package that exposes SSH to the internet is potentially vulnerable.

This backdoor almost became one of the most significant intrusion enablers ever — one that would’ve dwarfed the SolarWinds backdoor. The attackers were almost able to gain immediate access to any Linux machine running an infected distro, which includes Fedora, Ubuntu, and Debian. Almost.

There was only one thing that stopped that from happening — Andres Freund. After investigating a 500 ms latency issue that was introduced after a software update, Andres was able to trace the issue back to the xz package and ultimately identify the backdoor.

This obviously raises a lot of concerns. We got lucky. If this backdoor was not detected by a curious engineer, how long would it have remained active?

And perhaps even more concerning: What if this has happened before?

Detection and mitigation

Version control.

The Cybersecurity and Infrastructure Security Agency (CISA) recommended course of action is to downgrade to an uncompromised version, such as 5.4.6.

To know which version of XZ Utils or liblzma you currently have on your systems, you can run the following query in Akamai Guardicore Segmentation Insight that will look for loaded instances of the liblzma library (Figure 2).

Alternatively, you can run the following query to find the package manager for the installed version.

Of course, you can also filter to show only vulnerable assets.

Threat hunting

Since the backdoor actually executes system commands, and isn’t just allowing authentication, it might be possible to detect this behavior via process tracking.

Usually, during logon, a new shell is created for the logging user, and runs the default shell process (like bash). However, with this backdoor, the malicious command is actually executed by the SSH daemon process, sshd , which could trigger an anomaly.

Our threat hunting service, Akamai Hunt , has methods in place to detect such anomalies; for example, by constantly tracking a baseline of process activity and their child processes.

Kill switch

According to some analyses of the backdoor , it appears to have an environment variable kill switch. Adding the key yolAbejyiejuvnup=Evjtgvsh5okmkAvj to the system’s environment variables may disable the backdoor.

Backdoor in upstream xz/liblzma leading to ssh server compromise

FAQ on the xz-utils backdoor

Filippo Valsorda on X

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